<template>
  <div v-if="coupons && coupons.length" id="goods-coupons">
    <div class="pro-list">
      <div class="pro-title">优&ensp;惠&ensp;券</div>
      <div class="pro-content">
        <template v-for="(coupon, index) in coupons">
          <div
            v-if="index < 2"
            :key="coupon.coupon_id"
            class="coupons-item"
            @click.stop="handleReceiveCoupon(coupon)"
          >
            <i class="coupons-border-l"></i>
            <i class="coupons-border-r"></i>
            <span class="tj">满{{ coupon.coupon_threshold_price }}减{{ coupon.coupon_price }}</span>
          </div>
        </template>
        <a v-if="coupons.length > 2" href="javascript:;" @click.stop="sidebarOpen = true">查看更多>></a>
      </div>
    </div>
    <div :class="['coupons-sidebar', sidebarOpen && 'open']">
      <div class="title-sidebar">
        <i class="icon-title-sidebar icon-coupons"></i>
        <span class="title-title-sidebar">优惠券</span>
        <i class="icon-title-sidebar icon-close" @click.stop="sidebarOpen = false"></i>
      </div>
      <div class="content-sidebar" @click.stop="() => {}">
        <!--可领优惠券-->
        <div class="items-coupons">
          <div class="title-items-coupons">
            <i class="line line-l"></i>
            <span class="title-span">可领优惠券</span>
            <i class="line line-r"></i>
          </div>
          <div class="content-items-coupons">
            <div v-for="coupon in coupons" :key="coupon.coupon_id" class="item-b">
              <div class="detail-b">
                <div class="money-b">
                  <i class="arrow sysicon">￥</i>
                  <span class="money">{{ coupon.coupon_price | unitPrice('', 'before') }}</span>
                  <i class="arrow">.{{ coupon.coupon_price | unitPrice('', 'after') }}</i>
                </div>
                <div class="other-b">
                  <p>{{ coupon.title }}</p>
                  <p class="color-gary">满{{ coupon.coupon_threshold_price }}减{{ coupon.coupon_price }}</p>
                  <p class="color-gary">
                    有效期{{ coupon.start_time | unixToDate('yyyy-MM-dd') }} 至 {{ coupon.end_time | unixToDate('yyyy-MM-dd') }}
                  </p>
                </div>
              </div>
              <div class="btn-b">
                <a href="javascript:;" @click.stop="handleReceiveCoupon(coupon)" class="get-b is-get">立即领取</a>
                <i class="is-get-b"></i>
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
/**
 * 商品优惠券模块
 * 查看店铺优惠券列表、领取优惠券
 */
import * as API_Members from '@/api/members'
import * as API_Promotions from '@/api/promotions'
import Storage from '@/utils/storage'

export default {
  name: 'goods-coupons',
  props: ['goods', 'isSnapshot', 'selectedSku'],
  data() {
    return {
      sidebarOpen: false,
      couponsAll: [],
      coupons: []
    }
  },
  mounted() {
    if (this.isSnapshot) {
      this.coupons = this.goods.coupon_list
    } else {
      this.GET_CouponsList()
    }
    this.$nextTick(() => {
      window.addEventListener('click', this.handleClsoeSide)
    })
  },
  watch: {
    selectedSku: function(val) {
      if (!this.couponsAll || !this.couponsAll.length) return
      const sku_coupons = this.couponsAll.find(key => key.sku_id === val.sku_id).coupon_list
      this.coupons = sku_coupons
    }
  },
  methods: {
    /** 获取优惠券列表 */
    GET_CouponsList() {
      const { goods_id } = this.goods
      API_Promotions.getOwnCoupons(goods_id).then(response => {
        this.couponsAll = response
      })
    },
    /** 关闭优惠券侧边栏 */
    handleClsoeSide() {
      this.sidebarOpen = false
    },
    /** 领取优惠券 */
    handleReceiveCoupon(coupon) {
      if (this.isSnapshot) {
        this.$message.error('此优惠券为此商品的快照信息，不能领取！')
        return false
      }
      if (!Storage.getItem('refresh_token')) {
        this.$confirm('您还未登录，要现在去登录吗？', () => {
          this.$router.push({ path: `/login?forward=${this.$route.path}` })
        })
        return false
      }
      API_Members.receiveCoupons(coupon.coupon_id).then(() => {
        this.$message.success('领取成功！')
      })
    }
  },
  destroyed() {
    window.removeEventListener('click', this.handleClsoeSide)
  }
}
</script>

<style lang="scss" scoped>
@import "../../assets/styles/color";
.coupons-item {
  position: relative;
  display: inline-block;
  height: 16px;
  padding-left: 2px;
  line-height: 16px;
  text-align: center;
  border-top: 1px solid #df3033;
  border-bottom: 1px solid #df3033;
  background: #ffdedf;
  font-size: 14px;
  white-space: nowrap;
  margin-right: 13px;
  cursor: pointer;
}
.coupons-item .tj {
  padding: 0 10px;
  color: #df3033;
  font-size: 12px;
}
.coupons-item .coupons-border-l,
.coupons-item .coupons-border-r {
  position: absolute;
  top: -1px;
  display: block;
  height: 18px;
  width: 2px;
  overflow: hidden;
  background: url('') no-repeat;
}
.coupons-item .coupons-border-l {
  left: 0;
  background-position: -2px 0;
}
.coupons-item .coupons-border-r {
  right: -2px;
}
.coupons-more {
  cursor: pointer;
  font-size: 12px;
}
.coupons-sidebar {
  position: fixed;
  top: 0;
  right: -300px;
  padding-top: 50px;
  width: 280px;
  height: 100%;
  z-index: 10000;
  overflow-x: hidden;
  overflow-y: scroll;
  background-color: #f5f5f5;
  box-shadow: 0 0 15px #ccc;
  transition: all .3s ease-out;
}
.coupons-sidebar::-webkit-scrollbar {
  width: 5px;
}
.coupons-sidebar::-webkit-scrollbar-track {
  background-color: #f5f5f5;
}
.coupons-sidebar::-webkit-scrollbar-thumb {
  background-color: #7f7f7f;
}
.coupons-sidebar::-webkit-scrollbar-thumb:hover {
  background-color: #666
}
.coupons-sidebar::-webkit-scrollbar-thumb:active {
  background-color: #666
}
.coupons-sidebar.open {
  right: 0;
}
.title-sidebar {
  position: fixed;
  z-index: 10;
  top: 0;
  right: -300px;
  width: 280px;
  height: 40px;
  line-height: 40px;
  background-color: #f5f5f5;
  box-shadow: 0 0 15px #ccc;
  transition: all .3s ease-out;
}
.coupons-sidebar.open .title-sidebar {
  right: 0;
}
.icon-title-sidebar {
  display: block;
  width: 40px;
  height: 40px;
}
.title-title-sidebar {
  float: left;
  font-size: 14px;
}
.icon-title-sidebar.icon-coupons {
  float: left;
  background: url('') no-repeat center;
  background-size: 60%;
}
.icon-title-sidebar.icon-close {
  float: right;
  background: url('') no-repeat center;
  background-size: 30%;
  margin-right: 10px;
  cursor: pointer;
  transition: all .3s ease-out;
}
.icon-title-sidebar.icon-close:hover {
  transform: rotate(180deg);
}
.content-sidebar {
  padding: 0 10px 50px 10px;
}
.items-coupons {
  clear: both;
}
.title-items-coupons {
  position: relative;
  text-align: center;
}
.title-items-coupons .line {
  position: absolute;
  top: 50%;
  display: block;
  margin-top: -1px;
  width: 33%;
  height: 1px;
  background-color: #afafaf;
}
.line.line-l {
  left: 0;
}
.line.line-r {
  right: 0;
}
.title-items-coupons .title-span {
  font-size: 12px;
  color: #333;
}
.content-items-coupons .item-b {
  position: relative;
  width: 255px;
  margin: 20px 0;
  height: 106px;
  background-color: #fff;
  overflow: hidden;
}
.item-b .detail-b {
  position: relative;
  float: left;
  width: 230px;
  height: 106px;
  background-color: #fff;
  overflow: hidden;
}
.item-b .btn-b {
  position: relative;
  float: right;
  width: 20px;
  height: 106px;
  background-color: #ff002d;
  color: #fff;
}
.item-b .btn-b:before {
  content: "";
  position: absolute;
  top: -20px;
  display: block;
  width: 10px;
  height: 100%;
  margin-top: 20px;
  background-size: 20px 6px;
  left: -10px;
  background-color: #fff;
  background-position: 100% 35%;
  background-image: linear-gradient(-45deg, #ff002d 25%, transparent 25%, transparent),
  linear-gradient(-135deg, #ff002d 25%, transparent 25%, transparent),
  linear-gradient(-45deg, transparent 75%, #ff002d 75%),
  linear-gradient(-135deg, transparent 75%, #ff002d 75%);
}
.item-b .get-b {
  display: block;
  width: 14px;
  font-size: 13px;
  color: #fff;
  padding: 12px 2px;
}
.item-b .get-b:hover {
  color: #fece75;
}
.item-b .money-b {
  width: 225px;
  font-family: Arial;
  font-size: 35px;
  font-weight: 700;
  line-height: 24px;
  padding-top: 10px;
  color: #ff002d;
}
.money-b .arrow {
  font-size: 16px;
  font-weight: normal;
}
.money-b .sysicon {
  margin-left: 10px;
}
.item-b .other-b {
  padding-left: 15px;
  font-size: 12px;
}
.item-b .other-b p {
  line-height: 15px;
}
.item-b .other-b .color-gary {
  color: #999;
}
.item-b .is-get-b {
  position: absolute;
  bottom: 5px;
  right: 35px;
  display: none;
  width: 50px;
  height: 50px;
  background: url('') no-repeat center;
  background-size: 100%;
}
</style>
